A recurrent trans-equatorial Coronal Hole is currently in an Earth-facing position and the High Speed Stream (HSS) from this Coronal Hole is anticipated to arrive later today. On the previous rotation this HSS produced a significant geomagnetic storm with a peak of STORM G3, and it's likely to reach similar levels this time around. The HSS is expected to remain geoeffective for 24-48 hours before subsiding.
Assuming clear dark skies, there is an increased chance of seeing the aurora over the next couple of evenings. Those in Scotland, northern England and Northern Ireland would be likely to have the best chance, if the weather were to be favourable and if geomagnetic activity levels are as expected.
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